Please note that this listing is for the size M: 15.75" - 17.5" waist girth (3.75" width). For belly bands, you want to take the girth measurement at the waist (in front of the back legs). * Industrial strength velcro closure. All cotton denim. Durable construction. * Enjoy your dog in your home without the worry of soiling on floors or furniture by reduce marking and help house training. * Perfect for travel in the car, airplanes, dog friendly hotels, stores and cafes. Great for pet with incontinence problem. * 100% cotton lined with a double layer of diaper flannel. Machine washable and quick drying.